Class AbstractMessageReaderArgumentResolver

java.lang.Object

org.springframework.web.reactive.result.method.HandlerMethodArgumentResolversupport

org.springframework.web.reactive.result.method.annotation.AbstractMessageReaderArgumentResolver

All Implemented Interfaces:

HandlerMethodArgumentResolver

Direct Known subclasses:

HttpEntityMethodArgumentResolver, RequestBodyMethodArgumentResolver, RequestPartMethodArgumentResolver

public abstract class AbstractMessageReaderArgumentResolver
extends HandlerMethodArgumentResolversupport

Abstract base class for argument resolvers that resolve method arguments by reading the request body with an HttpMessageReader.

Applies validation if the method argument is annotated with any annotations that trigger validation. Validation failure results in a serverWebInputException.

since:

5.0

Author:

Rossen stoyanchev, sebastien Deleuze

Field summary

Fields inherited from class HandlerMethodArgumentResolversupport

logger

Constructor summary

Constructors

Modifier	Constructor	Description
protected	AbstractMessageReaderArgumentResolver(List<HttpMessageReader<?>>&nbsp;readers)	Constructor with HttpMessageReader's and a Validator.
protected	AbstractMessageReaderArgumentResolver(List<HttpMessageReader<?>>&nbsp;messageReaders, ReactiveAdapterRegistry&nbsp;adapterRegistry)	Constructor that also accepts a ReactiveAdapterRegistry.

Method summary

Modifier and Type	Method	Description
List<HttpMessageReader<?>>	getMessageReaders()	Return the configured message converters.
protected reactor.core.publisher.Mono<Object>	readBody(MethodParameter&nbsp;bodyParameter, boolean&nbsp;isBodyRequired, BindingContext&nbsp;bindingContext, serverWebExchange&nbsp;exchange)	Read the body from a method argument with HttpMessageReader.
protected reactor.core.publisher.Mono<Object>	readBody(MethodParameter&nbsp;bodyParam, @Nullable MethodParameter&nbsp;actualParam, boolean&nbsp;isBodyRequired, BindingContext&nbsp;bindingContext, serverWebExchange&nbsp;exchange)	Read the body from a method argument with HttpMessageReader.

Methods inherited from class HandlerMethodArgumentResolversupport

checkAnnotatedParamNoReactiveWrapper, checkParameterType, checkParameterTypeNoReactiveWrapper, getAdapterRegistry

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, tostring, wait, wait, wait

Methods inherited from interface HandlerMethodArgumentResolver

resolveArgument, supportsParameter

Constructor Details

AbstractMessageReaderArgumentResolver

protected&nbsp;AbstractMessageReaderArgumentResolver(List<HttpMessageReader<?>>&nbsp;readers)

Constructor with HttpMessageReader's and a Validator.

Parameters:

readers - the readers to convert from the request body

AbstractMessageReaderArgumentResolver

protected&nbsp;AbstractMessageReaderArgumentResolver(List<HttpMessageReader<?>>&nbsp;messageReaders,
 ReactiveAdapterRegistry&nbsp;adapterRegistry)

Constructor that also accepts a ReactiveAdapterRegistry.

Parameters:

messageReaders - readers to convert from the request body

adapterRegistry - for adapting to other reactive types from Flux and Mono

Method Details

getMessageReaders

public&nbsp;List<HttpMessageReader<?>>&nbsp;getMessageReaders()

Return the configured message converters.

readBody

protected&nbsp;reactor.core.publisher.Mono<Object>&nbsp;readBody(MethodParameter&nbsp;bodyParameter,
 boolean&nbsp;isBodyRequired,
 BindingContext&nbsp;bindingContext,
 serverWebExchange&nbsp;exchange)

Read the body from a method argument with HttpMessageReader.

Parameters:

bodyParameter - the MethodParameter to read

isBodyRequired - true if the body is required

bindingContext - the binding context to use

exchange - the current exchange

Returns:

the body

see Also:

• readBody(MethodParameter, MethodParameter, boolean, BindingContext, serverWebExchange)

readBody

protected&nbsp;reactor.core.publisher.Mono<Object>&nbsp;readBody(MethodParameter&nbsp;bodyParam,
 @Nullable MethodParameter&nbsp;actualParam,
 boolean&nbsp;isBodyRequired,
 BindingContext&nbsp;bindingContext,
 serverWebExchange&nbsp;exchange)

Read the body from a method argument with HttpMessageReader.

Parameters:

bodyParam - represents the element type for the body

actualParam - the actual method argument type; possibly different from bodyParam, for example, for an HttpEntity argument

isBodyRequired - true if the body is required

bindingContext - the binding context to use

exchange - the current exchange

Returns:

a Mono with the value to use for the method argument

since:

5.0.2